Một kiện hàng có 12 sản phẩm trong đó có 6 sản phẩm loại I , 4 sản phẩm loại II . Giá bán mỗi sản phẩm loại I , loại II là : 8 ngàn đồng và 6 ngàn đồng . Lấy ngẫu nhiên 2 sản phẩm để bán . a . Lập bảng phân phối xác suất của số tiền thu được do bán 2 sản phẩm b . Tìm kỳ vọng số tiền bán 2 sản phẩm

Since opening night, attendance at play a has increased steadily, while attendance at play b first rose and then fell. equations modeling the daily attendance y at each play are shown below, where x is the number of days since opening night. on what day(s) was the attendance the same at both plays? what was the attendance? play a: y = 8x + 191 play b: y = -x^2 + 26x + 126 a. the attendance was never the same at both plays. b. the attendance was the same on day 5. the attendance was 231 at both plays on that day. c. the attendance was the same on day 13. the attendance was 295 at both plays on that day. d. the attendance was the same on days 5 and 13. the attendance at both plays on those days was 231 and 295 respectively.

Can some one explain how to slove specifically, what is the value of x? 0.9(x+1.4)-2.3+0.1x=1.6 enter the answer as a decimal in the box. x= ?

Need showing work for this problem 56.25 ×25.80